SAN JOSE -- San Jose police closed down a portion of downtown Tuesday morning to investigate a suspicious package in the area of Market and Santa Clara streets until it was later determined the parcel did not contain anything dangerous.

At about 11:39 a.m., a worker at a construction site called police to report the suspicious package, which police declined to describe. They said no threatening note or message accompanied the package.

The police department's bomb squad was summoned to the scene, and two blocks in either direction around Market and Santa Clara streets were closed for the investigation.

The closure reportedly lasted about three hours, and the area had been entirely cleared and reopened by 4:30 p.m., police said.

Police said it is not known who left the package at the construction site.